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R TUNPER. HEATING APPARATUS.

No. 283.440, Patented Aug. 21, 1883 nga.

` nga.

. I T'i 77,217, &Wed Jjz rez Zr e UNITED STATES PATENT OFFICE. v

*i* ROBERT {TUNGFEl-, OF GORLITZ, PRUSSIA, GERMANY.

HEATING APPARATUS.

SPGIFICATION forming part of Letters Patent No. 283,440, dated August 21,1883.

' Application filed March 25,139::. (Ne moden i To all whom it may concern:

. Be it known that I, ROBERT UNGF R, a subject of' the King of Prussia, residing in' Grlitz, Prussia, have invented certain new and useful Improvements in Hot-Air Heating Apparatus, of which the following is a specification.

` My invention relates to an apparatus for heating air for buildings, and has for its obro jeet, first, the absolute absence of iron parts in the furnace, and to obtain for some length of time the necessary hot air by radiat'ion of its parts after the fur-mace or apparatus hasbeen well heated.

In the aeeompanying drawngs, Fi gure l is Vertical longitudinal section of the hotair apparatus Fig. 2 is a horizontal section, and Fig. 3 a Vertical cr'osssection, of the same.

The central part or stove proper, A, is provided with a funnelshaped hearth, a, of firehricks, and surrounded by fiues Z b at the sides, which, as well as the open top of the hearth,

'communicate with fiues d (Z, on one side of a partition-wall, and then through similar flues, d' d', on the other side of said partition'wall, into a fine, h, to the chimney C.

The ues d and d' are constructed to cause the fiane and gases to make a zigzag channelway,` as shown in Fig. l, and all walls and partitions are constructed of masonry to prevent all unequal expansion of the same, as is unavoidable in 'stores made of the combination of iron and masonry. hen the fire has been .kindled. the grate f or the hearth (a is filled with coal through the doors c c, after which these doors are closed tight, and any further `supply 'of air' required for combustion will' and this enterng air serves for the complete oxidation of any still inconpleteproducts of combustion. 4

On account of the great amount of brickwork this stove A is enabled to receive and store up a great amount of heat,. and will be able to heat a considerable quantity of air coming in contact with its external surface, and the heating of the same the night previously will effect the heating of the air required during the following day. This stove A is surrounded by ahull or casing, B, of brick-work,

forming a space all around the stove A,-with which the flues i i communicate to supply the air to be heated, and which heated air is dis-` 't'ibuted then into the 'passag'es Ic k conninni= cating with the several apartment-s in the build ing to be heated. r v

The' admission of the air through the channels i can be regulated, whereby faeility is given to retain the Warned air andto regulate the circulation of the air-current without the erate substantially as described, and for the purpose set forth. v

In witnes whereof I have hereunto signed my name in the presence of two subscribing witnesses ROBERT UNGFER. VVitnesses:

B. ROI,

G. H. SMITH.

It is hereby Certified that the name of the patentee of Letters Patent No. %3,440,

granted August 21, 1883, for an improvement in Heating Apparatus, Was erroneously written and printe& Robert Tuugfer that said name should have been written and printed Robert J'-ngfer tund that the patent'should be read with this correction ther-ein to make it eonform to the record of the ease in the Patent Office.

Signed, eountersigned, and searled this 1th day of September, A. D. 1883.

M. L. JOSLYN,

Acting Secretary of the Inte'ior.

Countersigned E. M. MARBLE,

Gomnssinm* of Patents. 

